Vehicles 2e.
I expect this to be lengthy and controversial.
First off, why in the world are Vehicles based on Volume rather than Mass? Vehicles are not sealed like starships requiring everything fit within the hull IN ORDER TO FIT INSIDE A JUMP BUBBLE!
Vehicles are only limited by two things: MASS of the vehicle and POWER required to move it. Neither of which are included in the Vehicles design book. I find this to be a HUGE oversight.
Chassis Type.
There are 20 listed core Chassis types, but really, there are 10, each with a Light and Heavy designation, plus Airship which doesn't fit into any other category.
The types are:
Ground Vehicle
Grav Vehicle
Unpowered (vehicle/boat)
Powered (boat/ship)
Submersible
Airship
Airplane
Jet
Helicopter
Walker
Hovercraft
Heavy versions, near as I can tell are bigger, more expensive versions, with more hull/volume.
Speed is a factor of TL.
Lets look at Ground Vehicles.
2 Hull/ space. That's 2 Hull points per 250cf.
(Id really like to see that based off of mass rather than volume. If we swap mass directly for volume, then we get 2 Hull per 250kg instead of 250cf. Figure an 1800kg car then would have 7 Hull. That same car has a volume of about 300 cubic feet (0.6 dTons) which would be a single space as written, and only have 2 Hull.
[Seriously, a 2016 Cadillac ATS-V weighs 1800kg, and is 4.7m long, 1.8m wide, and 1.3m tall. Figure its only fills 75% of that cube, we get 8.2 Cubic meters. Its no bigger than a single Mongoose Traveller "Space".
For all ground vehicles, Wheels are assumed standard, with Tracks doubling the cost, and reducing the speed.
The Heavy version of a ground vehicle costs 4 times as much, loses 2 points of agility, and gains an extra hull point per "space".
I'm still not sure what differentiates a ground vehicle chassis from a Grav vehicle chassis, or a hovercraft...one has wheels, one has thruster plates and one an air skirt. But the cahssis should be similar. >shrug<
There is no indication as to how much weight (mass) a vehicle can carry, or pull. The only allocation for a "suped-up" vehicle is the SPEED entry under performance.
There is also no allocation for power plants, its handwaved in the Power Plants sidebar, where PP type is based on TL. Apparently the only thing advanced PPs get you is higher max speed ratings. LOL
Except that Fission and Fusion are available but take a minimum of 10 spaces. Ok, that's 70 cubic meters, or 5 dTons. Not gonna put that in many ground cars.
My biggest two issues are with the Manipulator Arm, and the Brutus Heavy cargo Truck.
As written, the Manipulator arm has a STR and DEX based on TL, from 7 to 15.
I have two issues with this.
First, is the issue that a 250cf-500cf (that's 70-140 times the size of a person BTW) has a STR NO GREATER THAN A PERSON.
2nd: Per the lifting rules, STR and END determine lifting capacity. Well, the Arm has NO END listed. So how do you determine how much it can lift?
IF we assume that being a machine, its END is unlimited, and we use STR in its place, then our biggest STR 15 manipulator arm can lift (15+15) 30kg. WHoa that's a whole 66 lbs. So my Cr15,000 TL 10 manipulator can only lift a bag of dog food???
Ok, lets assume that because our machine has no END, it can lift the 2x (per the lifting rules w/o getting fatigued...that still only 60kg, or 120lbs. That's rediculous. We wont be lifting any cargo crates or shipping containers.
Frankly, I think manipulator arms and cranes should have a flat lifting capacity rather than use the lifting rules for characters. It just makes more sense, the bugger a crane or arm, the more it can lift.
Note that the cargo lifter entry on Pg. 97 makes no mention of its STR or its lifting ability, you have to search through the stat blocks until you see that it has Improved manipulator arms x2. Flipping back to pg 59, we can look up manipulator arms and see that Improved is TL8 with a STR of 15. See my example above. 30Kg. Does the second arm double the lifting capacity? If so, we could (with extrapolation as its NOT DISCUSSED ANYWHERE IN THE RULES) get the lifter up to 120kg (240 lbs). pathetic. I feel this is a huge omission, especially since 1) Players are goin gto ask, "how much can it lift" and 2) How much damage does it do when I hit someone with its club like arm? Neither of which are addressed.
My suggested house rule for vehicles (and battle dress) Lifting/carrying:
Encumbrance:
Vehicles can lift a number of Kg equal to listed STRx10 per arm.
So our TL 7 arm with ST 7 would lift/carry 140kg
TL 7 STR 12 arm would lift/carry 240kg
TL 10 STR 15 Arm would lift/carry 300kg.
What about a heavy crane arm? Extend the table upwards to allow for huge cranes.
Manipulator arms should also be purchased based on lifting capacity not size.
2) Brutus Heavy Truck.
The truck on pg 122 is bigger than a modern semi truck, and has less cargo capacity.
A modern semi-truck with a 53' trailer is about 8 dtons and has a cargo capacity of 18 Tons. The brutus is 15 dTons (60 spaces) and can carry 12.5 tons.
The brutus is twice the size of a semi with less carrying capacity.
Even if the Cargo tonnage is supposed to be dTons, ist still twice the size with only 50% more cargo space. Again I go back to cargo space should not be volume based, as its rarely enclosed. It should be weight (mass) driven.
As for me and my Traveller game, I will not be using the Vehicles book. It will be resigned to the bottom of a hamster cage.
I will simply use existing designs, and add HULL points, or use either the CT, Striker or T20 design charts, ones that make sense.